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Cpp/runtime: use utf8cpp from system if possible 

Try to find system's utf8cpp first, instead of downloading it from
github. utf8cpp 3 defines a cmake package, so we can use find_package.
Older utf8cpps don't, so we try also find_path. If all that fails, we
still fall back to github download.

This is needed as distributions cannot download stuff from their build
systems. And people want to use libraries/headers from the distribution
anyway.

I had to reorder the file a bit, so that the libraries are defined
through the utf8cpp detection
This commit is contained in:
Jiri Slaby 2021-02-10 08:44:32 +01:00
parent ac10e7bb79
commit 5a808b470e
1 changed files with 52 additions and 27 deletions
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69
runtime/Cpp/runtime/CMakeLists.txt
View File

@ -1,19 +1,3 @@
include(${CMAKE_ROOT}/Modules/ExternalProject.cmake)
set(THIRDPARTY_DIR ${CMAKE_BINARY_DIR}/runtime/thirdparty)
set(UTFCPP_DIR ${THIRDPARTY_DIR}/utfcpp)
ExternalProject_Add(
utfcpp
GIT_REPOSITORY "git://github.com/nemtrif/utfcpp"
GIT_TAG "v3.1.1"
SOURCE_DIR ${UTFCPP_DIR}
UPDATE_DISCONNECTED 1
CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${UTFCPP_DIR}/install -Dgtest_force_shared_crt=ON
TEST_AFTER_INSTALL 1
STEP_TARGETS build)
include_directories(
${PROJECT_SOURCE_DIR}/runtime/src
${PROJECT_SOURCE_DIR}/runtime/src/atn
@ -23,8 +7,6 @@ include_directories(
${PROJECT_SOURCE_DIR}/runtime/src/tree
${PROJECT_SOURCE_DIR}/runtime/src/tree/pattern
${PROJECT_SOURCE_DIR}/runtime/src/tree/xpath
${UTFCPP_DIR}/install/include/utf8cpp
${UTFCPP_DIR}/install/include/utf8cpp/utf8
)
@ -50,8 +32,49 @@ add_custom_target(make_lib_output_dir ALL
COMMAND ${CMAKE_COMMAND} -E make_directory ${LIB_OUTPUT_DIR}
)
add_dependencies(antlr4_shared make_lib_output_dir utfcpp)
add_dependencies(antlr4_static make_lib_output_dir utfcpp)
add_dependencies(antlr4_shared make_lib_output_dir)
add_dependencies(antlr4_static make_lib_output_dir)
find_package(utf8cpp QUIET)
set(INSTALL_utf8cpp FALSE)
if (utf8cpp_FOUND)
target_link_libraries(antlr4_shared utf8cpp)
target_link_libraries(antlr4_static utf8cpp)
else()
# older utf8cpp doesn't define the package above
find_path(utf8cpp_HEADER utf8.h
PATH_SUFFIXES utf8cpp
)
if (utf8cpp_HEADER)
include_directories(${utf8cpp_HEADER})
else()
include(${CMAKE_ROOT}/Modules/ExternalProject.cmake)
set(THIRDPARTY_DIR ${CMAKE_BINARY_DIR}/runtime/thirdparty)
set(UTFCPP_DIR ${THIRDPARTY_DIR}/utfcpp)
ExternalProject_Add(
utf8cpp
GIT_REPOSITORY "git://github.com/nemtrif/utfcpp"
GIT_TAG "v3.1.1"
SOURCE_DIR ${UTFCPP_DIR}
UPDATE_DISCONNECTED 1
CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${UTFCPP_DIR}/install -Dgtest_force_shared_crt=ON
TEST_AFTER_INSTALL 1
STEP_TARGETS build)
include_directories(
${UTFCPP_DIR}/install/include/utf8cpp
${UTFCPP_DIR}/install/include/utf8cpp/utf8
)
add_dependencies(antlr4_shared utf8cpp)
add_dependencies(antlr4_static utf8cpp)
set(INSTALL_utf8cpp TRUE)
endif()
endif()
if(CMAKE_SYSTEM_NAME MATCHES "Linux")
target_link_libraries(antlr4_shared ${UUID_LIBRARIES})
@ -131,13 +154,15 @@ install(DIRECTORY "${PROJECT_SOURCE_DIR}/runtime/src/"
FILES_MATCHING PATTERN "*.h"
)
install(FILES "${UTFCPP_DIR}/source/utf8.h"
if (INSTALL_utf8cpp)
install(FILES "${UTFCPP_DIR}/source/utf8.h"
DESTINATION "include/antlr4-runtime")
install(DIRECTORY "${UTFCPP_DIR}/source/utf8"
install(DIRECTORY "${UTFCPP_DIR}/source/utf8"
DESTINATION "include/antlr4-runtime"
COMPONENT dev
FILES_MATCHING PATTERN "*.h"
)
endif()